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The costs of getting too hot: Proteins that take the heat from global warming
Author(s) -
Tomanek Lars
Publication year - 2010
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.24.1_supplement.11.2
Subject(s) - niche , range (aeronautics) , variable (mathematics) , habitat , biology , thermal , heat shock protein , ecological niche , heat stress , ecology , climate change , heat shock , environmental science , materials science , meteorology , geography , genetics , zoology , mathematical analysis , mathematics , gene , composite material
The heat shock response (HSR) varies in animals that occupy different thermal environments. Some organisms occupying stable thermal environments do not have an inducible HSR. Organisms that occupy highly variable thermal environments (variations up to > 20°C) induce the HSR at times frequently and within the range of body temperatures they normally experience, suggesting that the response is part of their biochemical strategy to occupy this thermal niche. In comparison, organisms occupying moderately variable thermal environments (<10°C) activate the HSR at temperatures above those they normally experience in their habitats. They have a wider temperature range above their body temperature range over which they can synthesize Hsps. Due to this variation in the HSR, species from stable and highly variable environments are likely to be more affected by climate change than species from moderately variable environments. Furthermore, animals that occupy different thermal environments also vary in their proteomic response to heat stress; results that provide insights into the metabolic costs of sublethal levels of thermal stress.